We sell an array of tessera, a world of rocks, wearable art, and MosaicArt by KarenBaker :)
Alloy Wire Wrap Beads Silver tone are about 15mm diameter and would add a great element to a mosaic. Embed them in groups or as part of a background.... many uses.... Sold in bags of 10 balls.
Black Strand of Shell Beads
Yellow Shell Beads
Dalmation Jasper round beads